Cultural historian Gavin Plumley, food historian Angela Clutton, director John Wilkie and Professor Mererid Puw Davies join Anna Picard to discuss the Grimm Brothers’ fairytale, the genesis of Humperdinck’s opera and the allure of sugar and spice in a calorific collaboration with Biscuiteers Belgravia, with Prosecco and macarons on arrival, music from Paul Carey Jones and Berrak Dyer, and a Jolly Gingerbread to take home.